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205154202051210 = 23523297324930509
BaseRepresentation
bin101110101001011000101111…
…010101100110001010001010
3222220101112212002010000110110
4232221120233111212022022
5203342221301211114320
62004154312255055150
761132621243014246
oct5651305725461212
9886345762100413
10205154202051210
115a406454776255
121b0143132114b6
138a61c5c348b19
143893732c69426
1518ab7e92275e0
hexba962f56628a

205154202051210 has 32 divisors (see below), whose sum is σ = 513777479921280. Its totient is φ = 52329187769408.

The previous prime is 205154202051143. The next prime is 205154202051223. The reversal of 205154202051210 is 12150202451502.

205154202051210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148662464565 + ... + 148662465944.

It is an arithmetic number, because the mean of its divisors is an integer number (16055546247540).

Almost surely, 2205154202051210 is an apocalyptic number.

205154202051210 is an abundant number, since it is smaller than the sum of its proper divisors (308623277870070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205154202051210 is a wasteful number, since it uses less digits than its factorization.

205154202051210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297324930542.

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 205154202051210 in words is "two hundred five trillion, one hundred fifty-four billion, two hundred two million, fifty-one thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 297324930509 594649861018 891974791527 1486624652545 1783949583054 2973249305090 4459873957635 6838473401707 8919747915270 13676946803414 20515420205121 34192367008535 41030840410242 68384734017070 102577101025605 205154202051210